19 is already prime; no need for a tree.
26 greatest factor is itself, 19 is a prime number so it is 19...they dont have a same common factor but 26 x 19 is 494...
3 isn't a factor of either number.
3 and 19
1 and 38 2 and 19
19 can be both the factor of another number and a multiple. For example, 19 is a multiple of 1 (1 x 19 = 19). This is the only example of where 19 is a multiple of an integer (as 19 is prime). An example of 19 being a factor is when looking at the number 38. 2x19=38, therefore 19 is a factor of 38. There are many numbers (infinitely many) which have 19 as a factor.
Its factor are 1 and 19 because it is a prime number
19 is a prime number, but it is not a factor of 200.
19 is prime. No tree.
If 1 is considered a factor, the only common factor of 21 & 19 is 1, because 19 is a prime number. I'm not sure whether 1 is considered a factor since it does not reduce the original number and it's not a prime number.
Since 19 is a factor of 76, it is automatically the GCF.
A factor is a number that divides into another number. Factors of 19 are 1 and 19. Factors of 49 are 1, 7, and 49. Therefore, 1 is the greatest common factor.
19 is a prime number, so it has no prime factorization.
1 as 19 is a prime number
19 and 38
19 is already prime; no need for a tree.
26 greatest factor is itself, 19 is a prime number so it is 19...they dont have a same common factor but 26 x 19 is 494...